Dr Judith Curry, an American climatologist and former chair of the School of Earth and Atmospheric Sciences at the Georgia Institute of Technology, has just posted on her website extended extracts from a paywalled paper by expatriate New Zealander, Professor Michael J Kelly FRS,FREng, Professor of Solid State Electronics and Nanoscale Science, University of Cambridge, in which he asks if much of our effort to combat global warming is actually making things worse?" He adds: "Humanity is owed a serious investigation of how we have gone so far with the decarbonization project without a serious challenge in terms of engineering reality."